tinba | d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d

Analysis

max time kernel
110s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 08:24

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General

Target

d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe
Size

110KB
MD5

9dedfbcf6bef49798b1b7dcd3556619f
SHA1

4e89f5e31380de08743720aee7f547cce7fe4c82
SHA256

d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d
SHA512

7fb92bcc9ae4dbd365762fad735e988874cf9aa16635f6eb2879411ecad9a5f004882c5576a8600d937f5800c841d1e8902b629cb990fbb1487886debe94ce84
SSDEEP

1536:CiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:CiyvRmDLs/ZrwWJjAqGcRJ2hA

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba
Tinba family
tinba

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\394744D7 = "C:\\Users\\Admin\\AppData\\Roaming\\394744D7\\bin.exe"	winver.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5012-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2940	3604	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3604	winver.exe
3604	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3604	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 3604	5012	d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe	84
PID 5012 wrote to memory of 3604	5012	d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe	84
PID 5012 wrote to memory of 3604	5012	d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe	84
PID 5012 wrote to memory of 3604	5012	d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe	84
PID 3604 wrote to memory of 3428	3604	winver.exe	56
PID 3604 wrote to memory of 2744	3604	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2744

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3428
- C:\Users\Admin\AppData\Local\Temp\d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe
  "C:\Users\Admin\AppData\Local\Temp\d743c36d3a7a4ba8052ca9f7b047f3d7b74e3601b5ad09900c8aac7909ac840d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5012
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3604
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 356
      4⤵
      Program crash
      PID:2940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3604 -ip 3604
1⤵
PID:1440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2744-14-0x0000000000C70000-0x0000000000C76000-memory.dmp

Filesize
24KB

Download
memory/3428-7-0x00007FFAE052D000-0x00007FFAE052E000-memory.dmp

Filesize
4KB

Download
memory/3428-2-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3428-3-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3604-6-0x0000000077572000-0x0000000077573000-memory.dmp

Filesize
4KB

Download
memory/3604-5-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

Download
memory/3604-8-0x00007FFAE0490000-0x00007FFAE0685000-memory.dmp

Filesize
2.0MB

Download
memory/3604-15-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

Download
memory/5012-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/5012-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/5012-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/5012-10-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/5012-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download